html,body{
    width: 100%;
    height: 100%;
}
.login{
    width: 100%;
    height: 100%;
    background: url('../images/bg.png') 100% 100%;
    background-size: contain;
}
.login .box{
    position: absolute;
    left: 50%;
    top: 50%;
    text-align: center;
    margin-left: -157px;
    margin-top: -213px;
    width: 314px;
    height: 426px;
    background-color: #252d37;
    padding: 0 32px 46px;
    border-radius: 6px;
}
.login .box .login-logo{
    background: url('../images/logo.png') 50% 50% no-repeat;
    height: 172px;
}
.login .box-form input{
    height: 44px;
    margin-bottom: 24px;
    border: 1px solid #41454f;
    border-left: 0;
    background-color: #2c313c;
    margin-top: 1px;
    font-size: 14px;
    color: #ffffff;
    box-shadow: none;
}
.login .box-form input[type = Submit]{
    width: 100%;
    letter-spacing: 6px;
    height: 44px;
    font-size: 16px;
    background-image: -webkit-linear-gradient(top, #1fa6a2, #177b78);
}
.login .box-form input[type = Submit]:hover{
    background: #00e3db;
}